Limit Controllers

Temperature limit controller

  • Over/Under temperature protection
  • Over temperature timer
  • Measurement accuracy: ±0.3% of displayed value
  • Sampling time: 0.5s / 0.25s
  • DIN rail mounting type (Also installable on a panel)
  • Temperature
  • Main features
  • Main specification
  • External dimensions
  • Models

Main features

Over/Under Temperature Protection

When the temperature goes above or below the set value (high limit or low limit), the SA100L will interrupt or remove the power from the process.
This output can be used for alarm or interrupting power to the heater circuit.
For safety reason, the output will be retained until reset operation is executed even when the measured value goes back to the normal range.
Reset operation can be executed by front key operation, communication, or digital input.

DIN rail mounting type temperature controller

Installable on the DIN rail inside the control cabinet. Removable terminal socket for easy maintenance.

Two outputs can be assigned to control output, alarm output, or analog retransmission output

This instrument can be used as a temperature controller, an alarm, or an overtemperature protection device depending on the output assignment.

Main specification

  • Number of Inputs :1 point
  • Input type : ※See the Input Range Code for the input range.
    1)Thermocouple : K, J, T, S, R, E, B, N, C(W5Re/W26Re), U, L, PLII
    2)RTD: Pt100 or JPt100
    3)DC voltage: 0 to 5V dc, 1 to 5V dc
    4)DC current: 0 to 20mA dc, 4 to 20mA dc ※ A 250Ω external resistor is required.
  • Sampling time: 0.5s, 0.25s (Selectable)
  • Measurement accuracy:±(0.3% of displayed value+1 digit) ※Depends on the input and the range.
  • Output (OUT1) ※To be assigned from a control output, an alarm output, or an analog retransmission output.
    1) Relay contact output : 1c contact
    2) DC Current output : 0 to 20mA, 4 to 20mA dc


<Specification for Optional Functions>

  • Output2(OUT2)※To be assigned from an alarm output.
    Relay contact output : 1c contact
  • Alarm outputs (max.2 points): Temperature alarm
  • External contact inputs (max.2 points)
  • Communication function: Communication method RS-485


<General Specification>

  • Power supply voltage (Rating): 100 to 240V ac/24Vac/24Vdc
  • Ambient temperature: 0 to 50°C
  • weight: Approx.110g (excluding a socket)
  • Safety standards:

UL: UL 61010-1
cUL: CAN/CSA-C22.2 No.61010-1

  • Other approved standards

CE/UKCA marking

Electrical Safety: EN61010-1
EMC: EN61326-1
RoHS: EN IEC 63000

RCM: EN55011
FM: FM3545

External dimensions

(Unit : mm)